Aiming to disperse HA nanocrystals in a polymer matrix homogenously, uniform oil-soluble HA nanorods were synthesized via an oleic acid (OA)-assisted mixed-solvent thermal method, and then poly(lactic acid) (PLA)/HA nanorods nanocomposites were fabricated by using a solution method. The HA nanorods with an OA monolayer on the surface dispersed homogeneously in organic solvents and the dispersion in polymer solution was transparent and colloidally stable. TEM images showed that HA nanorods dispersed as single particles without aggregation in PLA matrix. The elongation at break of the composites increased from 4.24% to 8.79% by adding HA nanorods, whereas the tensile strength and Young's modulus were largely unchanged. HA nanorods accelerated evidently the PLA crystallization rate even at a low HA loading and induced a transition to an ordered crystalline morphology confirmed via non-iso/isothermal crystallization, the spherulitic morphology, calculations and wide-angle X-ray diffraction during heating and cooling cycles.

为了使HA纳米晶均匀分散在聚合物基体中，通过油酸（OA）辅助混合溶剂热法合成均匀的油溶性HA纳米棒，然后制备聚乳酸（PLA）/ HA纳米棒纳米复合材料。通过使用解决方法。表面具有OA单层的HA纳米棒在有机溶剂中均匀分散，在聚合物溶液中的分散液透明且胶体稳定。TEM图像显示HA纳米棒分散成单个颗粒，而没有聚集在PLA基质中。通过添加HA纳米棒，复合材料的断裂伸长率从4.24％增加到8.79％，而拉伸强度和杨氏模量则基本保持不变。